Civil Engineering

IDC provides comprehensive civil engineering services for local agencies and global engineering firms, focusing on transportation projects across California. Our expertise spans all phases, including PA/ED, PS&E, and Construction. We specialize in highway and railroad infrastructure, delivering innovative and cost-effective solutions. Our work includes highway interchange structures, elevated viaducts, freeway on/off ramps, river and local street bridges, pedestrian bridges, and various concrete and steel bridges, including seismic retrofitting.

In addition to highway projects, IDC excels in railroad bridge design, contributing to the development of design criteria and implementing efficient solutions for grade separation structures, river crossing bridges, through steel truss bridges, and more.

IDC's highly qualified engineers address the challenges of maintaining, improving, and expanding transportation capacity to support the growing population and economic activities. Below are examples of IDC’s successful past projects, demonstrating our commitment to excellence in engineering and infrastructure development.